From: hch@infradead.org (Christoph Hellwig)
Subject: SGL support of driver
Date: Fri, 31 Jul 2015 00:19:35 -0700 [thread overview]
Message-ID: <20150731071935.GA20609@infradead.org> (raw)
In-Reply-To: <20150730183828.GY13681@linux.intel.com>
On Thu, Jul 30, 2015@02:38:28PM -0400, Matthew Wilcox wrote:
> I'm not really interested in optimising for badly configured RAID setups :-)
>
> But point taken, RAID (and other things) can mess with I/Os between the
> page cache and the driver.
With blocksize < pagesize you can also get other non-aligned I/O,
although rately in a way where you could fit multiple of these into a
SGL.
prev parent reply other threads:[~2015-07-31 7:19 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-27 16:22 SGL support of driver sheng qiu
2015-07-27 16:31 ` Christoph Hellwig
2015-07-27 16:50 ` Keith Busch
2015-07-27 16:57 ` Christoph Hellwig
2015-07-27 17:13 ` Keith Busch
2015-07-28 14:35 ` Matthew Wilcox
2015-07-29 7:55 ` Christoph Hellwig
2015-07-29 14:28 ` Keith Busch
2015-07-30 18:38 ` Matthew Wilcox
2015-07-31 7:19 ` Christoph Hellwig [this message]
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